Which body parts are affected by e-cigarettes?

The use of electronic cigarettes may have an impact on multiple body parts. The main affected areas include the lungs, throat, and nasal cavity in the respiratory system; The heart and blood vessels of the circulatory system; The lips, tongue, gums, and teeth of the oral cavity and teeth; And the brain and nerve cells of the nervous system.

respiratory system
The respiratory system is a crucial part of our body, responsible for supplying the oxygen needed by the body and eliminating carbon dioxide from the body. The use of electronic cigarettes may have adverse effects on the respiratory system. Although e-cigarettes are often touted as safer alternatives to traditional tobacco, studies have shown that chemicals and particulate matter in e-cigarettes can also harm the respiratory system.
Lungs
The lungs are the core part of the respiratory system, responsible for gas exchange. Certain components in e-cigarettes, such as propylene glycol and glycerol, may cause lung injury caused by inhalation of e-cigarette or heated tobacco products (EVALI). In addition, some chemicals in electronic cigarette liquids may cause airway inflammation and alveolar damage.
throat
The throat is the part that connects the oral cavity and esophagus, and is also a channel for gases to enter and leave the lungs. Inhaling the vapor generated by electronic cigarettes may cause dryness, itching, or pain in the throat. This is because certain components in the vapor of e-cigarettes may cause irritation to the mucosa, such as nicotine and certain spice components. Long term use may increase the risk of laryngeal cancer.
cavidade nasal
The nasal cavity is the main channel for gases to enter and leave the body. Inhaling electronic cigarettes may cause dryness, pain, or inflammation of the nasal mucosa. The chemicals in electronic cigarettes, such as formaldehyde and other harmful substances, may cause long-term damage to the nasal cavity and increase the risk of developing nasopharyngeal carcinoma.
circulatory system
The circulatory system is crucial for the health and function of the human body, as it is responsible for transporting oxygen, nutrients, and hormones to various parts of the body through the bloodstream and eliminating waste. Some components in electronic cigarettes, especially nicotine, are known to have adverse effects on the circulatory system.
heart
The heart is the core of the circulatory system, responsible for pumping blood to the entire body. Nicotine is the main component in electronic cigarettes and is known to increase heart rate and blood pressure. Long term use of electronic cigarettes may increase the risk of heart disease. For example, according to the research of the American Heart Association, the heart disease incidence rate of electronic cigarette users is 25% higher than that of non users. In addition, nicotine may also cause a decrease in myocardial contractile function and arrhythmia.
blood vessel
Blood vessels are responsible for delivering blood to every corner of the body. The use of electronic cigarettes has been proven to cause vasoconstriction and hardening. Specifically, nicotine and other harmful chemicals in e-cigarettes, such as formaldehyde, can lead to endothelial damage and increase the risk of atherosclerosis. Arteriosclerosis is the main cause of heart disease and stroke. Other harmful substances in e-cigarettes may also have direct toxic effects on the blood, such as increasing the likelihood of coagulation, which further increases the risk of heart disease and stroke.
Oral and Dental
The mouth and teeth are not only related to food, but also play a crucial role in speech, facial expressions, and personal hygiene. The use of electronic cigarettes may have an impact on oral health, as the chemicals they contain may cause adverse reactions to oral tissues.
Lip region
The lips are a sensitive part of our body that frequently comes into contact with the external environment. Smoking e-cigarettes may cause dryness and peeling of the lips, as certain chemicals in e-cigarettes can absorb natural moisture from the lips. In addition, prolonged use of nicotine may lead to darker lip color, forming the so-called "smoker's lips". Nicotine and other harmful chemicals can also cause lip inflammation or other lip diseases.
tongue
The tongue is a crucial part of the oral cavity, involved in chewing, swallowing, and taste perception. The chemicals in e-cigarettes can cause inflammation of the tongue, known as the "e-cigarette tongue", which is a pain, burning sensation, and odor that appears on the tongue. Nicotine and other irritating chemicals can have a direct toxic effect on taste cells in the tongue, leading to decreased or altered taste perception.
Gums and teeth
Teeth and gum health are crucial for overall oral health. The use of e-cigarettes may lead to gum inflammation, gum bleeding, and tooth sensitivity. The sugar and acidic substances in e-cigarette liquid may cause tooth decay and increase the risk of dental caries. Long term consumption of e-cigarettes may also cause teeth to turn yellow or show spots, as nicotine and tar are known to stain teeth. In addition, e-cigarettes may also reduce saliva secretion in the oral cavity, leading to dry mouth and further increasing the risk of tooth and gum problems.
nervous system
The nervous system is the control center of the human body and plays a crucial role in sensory, motor, and cognitive functions. The use of electronic cigarettes, especially nicotine, may have a series of effects on the nervous system.
brain
The brain is the main organ in the human body that processes information, makes decisions, and controls behavior. Nicotine is a substance known to cross the blood-brain barrier and can directly act on nerve receptors in the brain, especially acetylcholine receptors. Long term exposure to nicotine may lead to changes in nerve receptors, thereby increasing dependence on nicotine. In addition, nicotine may alter the balance of neurotransmitters in the brain, especially dopamine, which is a neurotransmitter associated with pleasure and reward mechanisms. These changes may affect emotions, attention, and memory. According to research by the National Neurological Society of the United States, individuals who smoke e-cigarettes for a long time may experience a decline in performance on certain cognitive tasks.
nerve cell
Neural cells, also known as neurons, are the fundamental units that make up the nervous system. Some components in electronic cigarettes may have toxic effects on nerve cells. Nicotine can increase the activity of nerve cells, but long-term exposure may lead to dysfunction or death of nerve cells. Other harmful chemicals in electronic cigarette liquids, such as formaldehyde and acrylic acid, have also been proven to have direct toxic effects on nerve cells. For teenagers, their brains are still developing, so they may be more susceptible to the adverse effects of e-cigarettes, which may lead to learning and memory disorders.